.btn{
  display: inline-block;
  width:110px;
  line-height: 30px;
  background: $colorA;
  color: $colorG;
  font-size: $fontK;
  text-align: center;
  border: none;
}
.btn-default{
  background: #B0B0B0;
}
.btn-large{
  width: 160px;
  line-height: 40px;
}
.btn-huge{
  width: 300px;
  height: 54px;
  line-height: 54px;
  font-size: 16px; 
}
.btn-group{
  .btn{
    margin-right: 14px;
    &:last-child{
      margin-right: none;
    }
  }
}